Plastic water pipe cold cutting processing production line

Abstract

The application relates to a plastic water pipe cold cutting processing production line, characterized by comprising a workbench, a lower die translation conveying line, a lower die, an upper die, a first upper support frame, a second upper support frame, a pipe end cutting mechanism, a pipe chamfering mechanism, a drilling mechanism, an air-tight flow detection mechanism, a ball passing detection mechanism, a first mechanical arm, a second mechanical arm and a third mechanical arm, the lower die translation conveying line is arranged on the top of the workbench and sequentially passes below the first upper support frame and the second upper support frame, the lower die is provided with a plastic water pipe and is placed on the left end of the lower die translation conveying line through the first mechanical arm, and the lower die is transported to the right through the action of the lower die translation conveying line and sequentially passes below the first upper support frame and the second upper support frame. The design can complete the cutting, polishing and drilling processes in one time in the pipe conveying process through the production line mode, and the processing efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile slender plastic water pipe processing, in particular to a plastic water pipe cold cutting processing production line. BACKGROUND

[0002] The automobile slender plastic water pipe needs to pass through pipe end cutting, polishing and drilling and other processing procedures in turn after being injection molded, and passes through air tightness detection to judge whether the pipe is qualified; in the actual processing process, each procedure is separated, only when a batch of pipes are processed in one procedure, they are transported to the next procedure to continue, the processing efficiency is very low; and since the pipe is formed by injection molding, there may be protrusions and other defects in the pipe, the defect cannot be found through external observation and air tightness detection, but the plastic water pipe with the defect will have certain influence on the flow, thereby affecting the normal use of the plastic water pipe. SUMMARY

[0003] The present application designs a plastic water pipe cold cutting processing production line to solve the above problems, through the production line mode, the cutting, polishing and drilling procedures can be completed at one time in the pipe conveying process, the processing efficiency is greatly improved.

[0004] In order to solve the above technical problems, the present invention provides a plastic water pipe cold cutting processing production line, which is characterized by comprising a workbench, a lower mold translation conveyor line, a lower mold, an upper mold, a first upper support frame, a second upper support frame, a pipe end cutting mechanism, a pipe chamfering mechanism, a drilling mechanism, an airtight flow detection mechanism, a ball passing detection mechanism, a first robotic arm, a second robotic arm and a third robotic arm. The lower mold translation conveyor line is arranged on the top of the workbench and passes through the first upper support frame and the second upper support frame in sequence. The plastic water pipe to be processed is arranged on the lower mold and is placed on the left end of the lower mold translation conveyor line by the first robotic arm. The lower mold is transported to the right by the action of the lower mold translation conveyor line and passes through the first upper support frame and the second upper support frame in sequence. Three upper molds are provided, one of which is connected to the first upper support frame by a first lifting electric cylinder. By starting the first lifting electric cylinder, the upper mold connected to the first upper support frame cooperates with the lower mold passing directly below it to clamp the plastic water pipe to be processed. The front and rear of the first upper support frame A pipe end cutting mechanism is installed on each workbench on both sides, and two upper molds are connected to the bottom of the second upper support frame, wherein the upper mold on the left is connected to the second lifting electric cylinder installed on the second upper support frame, and the upper mold on the right is connected to the third lifting electric cylinder installed on the second upper support frame. The two upper molds connected to the second upper support frame are respectively driven by the second lifting electric cylinder and the third lifting electric cylinder to cooperate with the lower mold passing directly below them to clamp the plastic water pipe to be processed. The two upper molds connected to the second upper support frame are provided with pipe chamfering mechanisms on the workbenches on the front and rear sides. The drilling mechanism is arranged on the workbench on the right side of the lower mold translation conveyor line, and the workbench on the right side of the lower mold translation conveyor line can also be detachably installed with a support seat. The airtight flow detection mechanism and the ball passing detection mechanism are also arranged on the support seat from left to right. The plastic water pipe processed by the drilling mechanism is placed into the airtight flow detection mechanism and the ball passing detection mechanism in sequence by the second robotic arm. After taking out the plastic water pipe, the lower mold is removed from the lower mold translation conveyor line by the third robotic arm.

[0005] Further: the lower mold translation conveyor line is a conveyor belt conveyor.

[0006] Furthermore: the pipe end cutting mechanism includes a first manipulator, a cutting motor and a pipe cutting disc. The cutting motor is connected to the first manipulator. A first manipulator is installed on each workbench on the front and rear sides of the first upper support frame. The pipe cutting disc is fixed on the output shaft end of the cutting motor and the pipe cutting position is adjusted by the first manipulator.

[0007] Further, the pipe chamfering mechanism comprises a second mechanical arm, a polishing motor and a polishing cutter head, the polishing motor is connected with the second mechanical arm, two upper molds connected with the second upper support frame are provided with a second mechanical arm on the workbench on the front and back sides, and the polishing cutter head is fixed on the output shaft end of the cutting motor and adjusts the polishing position through the second mechanical arm.

[0008] Further, the drilling mechanism comprises a third mechanical arm, a drilling motor and a drilling cutter head, the drilling motor is connected with the third mechanical arm, the third mechanical arm is installed on the workbench on the right side of the lower mold translation conveying line, and the drilling cutter head is installed on the output shaft end of the drilling motor and adjusts the drilling position through the third mechanical arm.

[0009] Further, the air-tight flow detection mechanism comprises a first translation seat, a first placement seat, a first test electric cylinder, a second test electric cylinder, a third test electric cylinder, a first test connector, a second test connector and a third test connector, a clamping electric cylinder and a clamping plate, the support seat is provided with two parallel slide rails, the first translation seat is slidably connected on the two slide rails through the first slide block arranged on the bottom, the first placement seat is arranged on the first translation seat and integrated with the same, the top of the first placement seat is provided with a groove for placing the plastic water pipe, the first test electric cylinder is horizontally arranged and installed on the workbench on the front side of the support seat, the output shaft end of the first test electric cylinder is telescopic in the horizontal direction and connected with the first test connector, the second test electric cylinder is vertically fixed on the workbench on the rear side of the support seat, the output shaft end of the second test electric cylinder is telescopic in the inclined direction and connected with the second test connector, the third test electric cylinder is obliquely arranged on the right side of the first placement seat and the output shaft end thereof is connected with the third test connector, the third test electric cylinder is fixed on the lifting seat through a support, the lifting seat is connected with a lifting mechanism fixed in the workbench, the workbench and the support seat are both provided with a gap for the lifting seat to pass through, the first test connector is connected with a flowmeter and a pressure gauge, the clamping plate is horizontally arranged above the first placement seat and connected with the clamping electric cylinder, the clamping electric cylinder is fixed on the support seat on the left side of the first placement seat, and the clamping plate is pressed tightly in the groove on the first placement seat through the clamping electric cylinder.

[0010] Further, the lifting mechanism comprises a fixed plate, a lifting plate, a transmission plate, a support plate, a stepping motor, a guide column and a guide sleeve, the fixed plate is installed at the bottom of the workbench, the support plate is connected below the fixed plate through the guide column, the lifting seat is connected with the lifting plate through the transmission plate, the lifting plate is slidably connected to the guide column through the guide sleeve, the stepping motor is fixed on the support plate through the mounting seat, the output shaft of the stepping motor is telescopic in the vertical direction, the bottom of the lifting seat is provided with a connecting head for connecting the output shaft of the stepping motor, and the connecting head at the bottom of the lifting seat is located above the output shaft of the stepping motor.

[0011] Further, the ball passing detection mechanism comprises a second translation seat, a second placement seat, a first connecting electric cylinder, a second connecting electric cylinder, a first pipe joint, a second pipe joint, a sealing plug, a ball passing containing box, a channel blocking electric cylinder, a gas extraction joint, a backflow pipe and a flow guide pipe, the second translation seat is slidably connected to the two slide rails on the right side of the first translation seat through the second sliding block arranged at the bottom, the second placement seat is arranged on the second translation seat and integrated with the second translation seat, the top of the second placement seat is provided with a second groove for placing the plastic water pipe, the first connecting electric cylinder is horizontally arranged and installed on the workbench at the front side of the support seat, the output shaft of the first connecting electric cylinder is telescopic in the horizontal direction and connected with the first pipe joint, the second connecting electric cylinder is vertically fixed on the workbench at the rear side of the support seat, the output shaft of the second connecting electric cylinder is telescopic in the inclined direction and connected with the second pipe joint, the sealing plug is fixed on the support seat at the right side of the second placement seat through the side bracket, the ball passing containing box is fixed on the workbench in front of the second translation seat through the fixing frame, the ball passing containing box is connected with the gas extraction joint and communicated with the first pipe joint through the flow guide pipe, the second pipe joint is communicated with the ball passing containing box through the backflow pipe, and the channel blocking electric cylinder is installed on the fixing frame above the ball passing containing box, the channel blocking electric cylinder extends into the ball passing containing box and seals the flow guide pipe and the backflow pipe respectively.

[0012] Further, the bottom of the support seat is also horizontally fixed with an auxiliary guide rod, the second translation seat is slidably connected to the auxiliary guide rod through the guide seat, the support seat and the workbench are both provided with a through groove for the guide seat to pass through, and the auxiliary guide rod is parallel to the slide rails.

[0013] Further, one limiting stopper is arranged on the support seat at the left side of the first translation seat and on the support seat at the right side of the second translation seat.

[0014] After the above structure is adopted, the cutting, polishing and drilling processes can be completed at one time in the pipeline conveying process in the form of production line, the processing efficiency is greatly improved, and the air-tight flow detection mechanism and the ball passing detection mechanism are arranged, air leakage defects of the pipeline can be found, whether there is a protrusion in the pipeline can be found, the flow of the pipeline is ensured to meet the requirements, the practical performance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0016] Figure 1 is a use state perspective view of the application.

[0017] Figure 2 is a use state top view of the application.

[0018] Figure 3 is a use state perspective view of the application after the first upper support frame and the second upper support frame are removed

[0019] Figure 4 is a use state top view of the application after the first upper support frame and the second upper support frame are removed.

[0020] Figure 5 is a perspective structural view of the air-tight flow detection mechanism and the ball passing detection mechanism.

[0021] Figure 6 is a front view structural view of the air-tight flow detection mechanism and the ball passing detection mechanism.

[0022] Figure 7 is a bottom view structural view of the air-tight flow detection mechanism and the ball passing detection mechanism. DETAILED DESCRIPTION

[0023] As Figure 1 , Figure 2 , Figure 3 and Figure 4The plastic water pipe cold cutting processing production line shown comprises a workbench 1, a lower mold translation conveying line 2, a lower mold 8, an upper mold, a first upper support frame 3, a second upper support frame 4, a pipe end cutting mechanism 5, a pipe chamfering mechanism 6, a drilling mechanism 7, an airtight flow detection mechanism 12, a ball passing detection mechanism 13, a first mechanical arm, a second mechanical arm and a third mechanical arm, the lower mold translation conveying line is arranged on the top of the workbench and passes through the lower side of the first upper support frame and the second upper support frame in sequence, the lower mold is provided with a plastic water pipe to be processed and is placed on the left end of the lower mold translation conveying line by the first mechanical arm, the lower mold is transported to the right by the action of the lower mold translation conveying line and passes through the lower side of the first upper support frame and the second upper support frame in sequence, the upper mold is provided with three, one of which is connected to the lower side of the first upper support frame by a first lifting electric cylinder 10, the upper mold connected to the first upper support frame is matched with the lower mold passing through the lower side thereof to clamp the plastic water pipe to be processed by starting the first lifting electric cylinder, the workbench on the front and rear sides of the first upper support frame is respectively provided with a pipe end cutting mechanism, the bottom of the second upper support frame is connected with two upper molds, the upper mold on the left side is connected with a second lifting electric cylinder 11 arranged on the second upper support frame, the upper mold on the right side is connected with a third lifting electric cylinder 14 arranged on the second upper support frame, the two upper molds connected to the second upper support frame are respectively matched with the lower mold passing through the lower side thereof to clamp the plastic water pipe to be processed by the driving of the second lifting electric cylinder and the third lifting electric cylinder, the workbench on the front and rear sides of the two upper molds connected to the second upper support frame is provided with a pipe chamfering mechanism, the drilling mechanism is arranged on the workbench on the right side of the lower mold translation conveying line, the workbench on the right side of the lower mold translation conveying line is also detachably provided with a support seat 15, the airtight flow detection mechanism and the ball passing detection mechanism are also arranged on the support seat from left to right in sequence, the plastic water pipe processed by the drilling mechanism is placed into the airtight flow detection mechanism and the ball passing detection mechanism in sequence by the second mechanical arm, the lower mold is taken off from the lower mold translation conveying line by the third mechanical arm after the plastic water pipe is taken out, and the lower mold translation conveying line is a conveying belt type conveyor. The cutting, polishing and drilling processes can be completed at one time in the process of pipe conveying by the production line, the processing efficiency is greatly improved, the airtight flow detection mechanism and the ball passing detection mechanism are further arranged, the defects of whether the pipe leaks or not can be found, whether there is a protrusion in the pipe can be found, the flow of the pipe is ensured to meet the requirements, and the practical performance is improved.

[0024] As Figure 3 And Figure 4The pipe end cutting mechanism includes a first manipulator, a cutting motor and a pipe cutting cutter. The cutting motor is connected with the first manipulator. One first manipulator is installed on the workbench on the front and rear sides of the first upper support frame. The pipe cutting cutter is fixed on the output shaft end of the cutting motor and the pipe cutting position is adjusted by the first manipulator.

[0025] As shown in Figure 3 and Figure 4 The pipe chamfering mechanism includes a second manipulator, a polishing motor and a polishing cutter head. The polishing motor is connected with the second manipulator. One second manipulator is installed on the workbench on the front and rear sides of the two upper molds connected with the second upper support frame. The polishing cutter head is fixed on the output shaft end of the cutting motor and the polishing position is adjusted by the second manipulator.

[0026] As shown in Figure 3 and Figure 4 The drilling mechanism includes a third manipulator, a drilling motor and a drilling cutter head. The drilling motor is connected with the third manipulator. The third manipulator is installed on the workbench on the right side of the lower mold translation conveying line. The drilling cutter head is installed on the output shaft end of the drilling motor and the drilling position is adjusted by the third manipulator.

[0027] As shown in Figure 5 and Figure 6The air tightness flow detection mechanism shown includes a first translation seat 12-1, a first placement seat 12-2, a first test electric cylinder 12-3, a second test electric cylinder 12-4, a third test electric cylinder 12-5, a first test joint 12-6, a second test joint 12-7 and a third test joint 12-8, a clamping electric cylinder 12-9 and a clamping plate 12-10, the support seat is provided with two parallel slide rails 15-1, the first translation seat is slidably connected to the two slide rails through the first slide block arranged at the bottom, the first placement seat is arranged on the first translation seat and integrated with the same, the top of the first placement seat is provided with a groove for placing a plastic water pipe, the first test electric cylinder is horizontally arranged and mounted on the workbench at the front side of the support seat, the shaft end of the first test electric cylinder is telescopic in the horizontal direction and connected with the first test joint, the second test electric cylinder is vertically fixed on the workbench at the rear side of the support seat, the shaft end of the second test electric cylinder is telescopic in the inclined direction and connected with the second test joint, the third test electric cylinder is obliquely arranged at the right side of the first placement seat and the shaft end thereof is connected with the third test joint, the third test electric cylinder is fixed on the lifting seat 12-11 through a support, the lifting seat is connected with a lifting mechanism fixed in the workbench, the workbench and the support seat are both provided with a gap for the lifting seat to pass through, the first test joint is connected with a flowmeter and a pressure gauge, the clamping plate is horizontally arranged above the first placement seat and connected with the clamping electric cylinder, the clamping electric cylinder is fixed on the support seat at the left side of the first placement seat, and the clamping plate is pressed against the plastic water pipe in the groove on the first placement seat through the clamping electric cylinder. In operation, the plastic water pipe to be detected is placed on the first placement seat and pressed by the pressing device, the three test joints are quickly connected to the plastic water pipe by starting the first test electric cylinder, the second test electric cylinder and the third test electric cylinder, and the air tightness and flow of the plastic water pipe are judged by observing the flow and pressure changes in the plastic water pipe through the flowmeter and the pressure gauge.

[0028] As Figure 5 and Figure 6 The lifting mechanism shown includes a fixed plate 12-12, a lifting plate 12-13, a transmission plate, a support plate 12-15, a stepping motor 12-16, a guide column 12-17 and a guide sleeve 12-18, the fixed plate is mounted at the bottom of the workbench, the support plate is connected below the fixed plate through the guide column, the lifting seat is connected with the lifting plate through the transmission plate, the lifting plate is slidably connected to the guide column through the guide sleeve, the stepping motor is fixed on the support plate through a mounting seat 12-19, the shaft end of the stepping motor is telescopic in the vertical direction, the bottom of the lifting seat is provided with a connecting head for connecting the shaft end of the stepping motor, and the connecting head at the bottom of the lifting seat is located above the shaft end of the stepping motor.

[0029] As Figure 5 and Figure 6 The ball detection mechanism shown in the figure includes a second translation seat 13-1, a second placement seat 13-2, a first connecting electric cylinder, a second connecting electric cylinder 13-4, a first pipe joint 13-5, a second pipe joint 13-6, a sealing plug 13-7, a ball containing box 13-8, a channel blocking electric cylinder 13-8, a gas extraction joint 13-9, a backflow pipe 13-10 and a flow guide pipe 13-11. The second translation seat is slidingly connected to the two slide rails on the right side of the first translation seat through the second slide block arranged on the bottom. The second placement seat is arranged on the second translation seat and integrated with it. The top of the second placement seat is provided with a second groove for placing a plastic water pipe. The first connecting electric cylinder is horizontally arranged and installed on the workbench on the front side of the support seat. The shaft end of the first connecting electric cylinder is telescopic in the horizontal direction and connected with the first pipe joint. The second connecting electric cylinder is vertically fixed on the workbench on the rear side of the support seat. The shaft end of the second connecting electric cylinder is telescopic in the inclined direction and connected with the second pipe joint. The sealing plug is fixed on the support seat on the right side of the second placement seat through the side bracket 13-12. The ball containing box is fixed on the workbench on the front side of the second translation seat through the fixing frame 13-13. The ball containing box is connected with the gas extraction joint and communicated with the first pipe joint through the flow guide pipe. The second pipe joint is communicated with the ball containing box through the backflow pipe. The channel blocking electric cylinder is installed on the fixing frame above the ball containing box. The channel blocking electric cylinder extends into the ball containing box and seals the flow guide pipe and the backflow pipe respectively. A limiting stop lever 15-2 is arranged on the support seat on the left side of the first translation seat and on the support seat on the right side of the second translation seat. When detection is needed, the channel blocking electric cylinder blocks the backflow pipe, and the ball detection is carried out by inflation. After detection, the channel blocking electric cylinder blocks the flow guide pipe, and the ball is sucked back into the ball containing box by extracting air from the backflow pipe. During work, the second translation seat is translated, the sealing plug seals one end of the plastic water pipe, and then the first connecting electric cylinder and the second connecting electric cylinder 13-4 are started to connect the first pipe joint and the second pipe joint with the other two ends of the plastic water pipe respectively. The ball containing box is inflated through the gas extraction joint. The balls in the ball containing box enter the plastic water pipe through the first pipe joint under the action of the pressure gas. Whether the plastic water pipe has a protruding defect is determined by checking whether the balls can pass through the plastic water pipe.

[0030] As Figure 7The bottom of the support base is also horizontally fixed with auxiliary guide rods 13-14, and the second translation base is slidably connected on the auxiliary guide rods through guide seats 13-15, and the support base and the workbench are both provided with through slots for the guide seats to pass through, and the auxiliary guide rods are parallel to the slide rails.

[0031] The above are only preferred embodiments of the present application, and the protection scope of the present application is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the present application shall fall within the protection scope of the present application. It should be noted that, for ordinary skilled persons in the art, some improvements and refinements without departing from the principles of the present application shall be considered as falling within the protection scope of the present application.

Claims

1. A plastic water pipe cold cutting production line, characterized by: The invention comprises a workbench (1), a lower mold translation conveyor line (2), a lower mold (8), an upper mold, a first upper support frame (3), a second upper support frame (4), a pipe end cutting mechanism (5), a pipe chamfering mechanism (6), a drilling mechanism (7), an airtight flow detection mechanism (12), a ball passing detection mechanism (13), a first robotic arm, a second robotic arm and a third robotic arm. The lower mold translation conveyor line is arranged on the top of the workbench and passes through the first upper support frame and the second upper support frame in sequence. The lower mold is provided with a plastic water pipe to be processed and is placed on the left end of the lower mold translation conveyor line by the first robotic arm. The lower mold is transported to the right by the action of the lower mold translation conveyor line and passes through the first upper support frame and the second upper support frame in sequence. Three upper molds are arranged, one of which is connected to the first upper support frame by a first lifting electric cylinder (10). By starting the first lifting electric cylinder, the upper mold connected to the first upper support frame cooperates with the lower mold passing directly below it to clamp the plastic water pipe to be processed. The workbench on the front and rear sides of the first upper support frame Each is equipped with a pipe end cutting mechanism, and the bottom of the second upper support frame is connected to two upper molds, wherein the upper mold on the left is connected to the second lifting electric cylinder (11) installed on the second upper support frame, and the upper mold on the right is connected to the third lifting electric cylinder (14) installed on the second upper support frame. The two upper molds connected to the second upper support frame are respectively driven by the second lifting electric cylinder and the third lifting electric cylinder to cooperate with the lower mold passing directly below them to clamp the plastic water pipe to be processed. The two upper molds connected to the second upper support frame are provided with pipe chamfering mechanisms on the front and rear workbenches. The drilling mechanism is provided on the workbench on the right side of the lower mold translation conveyor line. The workbench on the right side of the lower mold translation conveyor line can also be detachably provided with a support seat (15). The airtight flow detection mechanism and the ball passing detection mechanism are also arranged on the support seat from left to right in sequence. The plastic water pipe processed by the drilling mechanism is placed in the airtight flow detection mechanism and the ball passing detection mechanism in sequence by the second mechanical arm. After the plastic water pipe is taken out, the lower mold is removed from the lower mold translation conveyor line by the third mechanical arm. The airtight flow detection mechanism includes a first translation seat (12-1), a first placement seat (12-2), a first test electric cylinder (12-3), a second test electric cylinder (12-4), a third test electric cylinder (12-5), a first test joint (12-6), a second test joint (12-7) and a third test joint (12-8), a clamping electric cylinder (12-9) and a clamping plate (12-10), two mutually parallel slide rails (15-1) are provided on the support seat, the first translation seat is slidably connected to the two slide rails through a first slider provided at the bottom, the first placement seat is provided on the first translation seat and is connected to the first translation seat as a whole, a groove for placing a plastic water pipe is provided on the top of the first placement seat, the first test electric cylinder is horizontally arranged and installed on the workbench on the front side of the support seat, and the shaft end of the first test electric cylinder is extended in the horizontal direction. The first test joint is connected to the second test joint, the second test electric cylinder is vertically fixed on the workbench at the rear side of the support seat, the shaft end of the second test electric cylinder is extended and retracted along the tilting direction and is connected to the second test joint, the third test electric cylinder is tiltedly arranged on the right side of the first placement seat and its shaft end is connected to the third test joint, the third test electric cylinder is fixed on the lifting seat (12-11) through a bracket, the lifting seat is connected to the lifting mechanism fixed in the workbench, the workbench and the support seat are provided with a notch for the lifting seat to pass through, the first test joint is connected to a flow meter and a pressure gauge, the clamping plate is horizontally arranged directly above the first placement seat and is connected to the clamping electric cylinder, the clamping electric cylinder is fixed to the support seat on the left side of the first placement seat, and the clamping plate presses the plastic water pipe into the groove on the first placement seat through the action of the clamping electric cylinder; The lifting mechanism includes a fixed plate (12-12), a lifting plate (12-13), a transmission plate, a support plate (12-15), a stepper motor (12-16), a guide column (12-17) and a guide sleeve (12-18), wherein the fixed plate is installed at the bottom of the workbench, the support plate is connected to the fixed plate directly below the fixed plate through the guide column, the lifting seat is connected to the lifting plate through the transmission plate, the lifting plate is connected to the guide column by sliding up and down through the guide sleeve, the stepper motor is fixed to the support plate through the mounting seat (12-19), the output shaft end of the stepper motor is telescopic in the vertical direction, and a connector for connecting the output shaft end of the stepper motor is provided at the bottom of the lifting seat, and the connector at the bottom of the lifting seat is located directly above the output shaft end of the stepper motor; The ball passing detection mechanism includes a second translation seat (13-1), a second placement seat (13-2), a first connecting electric cylinder, a second connecting electric cylinder (13-4), a first pipe joint (13-5), a second pipe joint (13-6), a sealing plug (13-7), a ball passing accommodating box (13-10), a channel blocking electric cylinder (13-8), an exhaust and exhaust air joint (13-9), a return pipe (13-16) and a guide pipe (13-11). The second translation seat is slidably connected to the two slide rails on the right side of the first translation seat through a second slider arranged at the bottom. The second placement seat is arranged on the second translation seat and is connected to it as a whole. The top of the second placement seat is provided with a second groove for placing a plastic water pipe. The first connecting electric cylinder is horizontally arranged and installed on the workbench on the front side of the support seat. The first connecting The output shaft end of the electric cylinder is extended and retracted in the horizontal direction and is connected to the first pipe joint. The second connected electric cylinder is vertically fixed on the workbench on the rear side of the support seat. The output shaft end of the second connected electric cylinder is extended and retracted in the inclined direction and is connected to the second pipe joint. The sealing plug is fixed to the support seat on the right side of the second placement seat through the side bracket (13-12). The ball-passing accommodating box is fixed to the workbench on the front side of the second translation seat through the fixing frame (13-13). The ball-passing accommodating box is connected to the exhaust gas joint and is connected to the first pipe joint through the diversion pipe. The second pipe joint is connected to the ball-passing accommodating box through the return pipe. The channel sealing electric cylinder is installed on the fixing frame above the ball-passing accommodating box. The channel sealing electric cylinder extends into the ball-passing accommodating box and seals the diversion pipe and the return pipe respectively.

2. The cold-cutting production line for plastic water pipes according to claim 1, characterized in that: The lower mold translation conveyor line is a conveyor belt conveyor.

3. The cold-cutting production line for plastic water pipes according to claim 1, characterized in that: The pipe end cutting mechanism includes a first manipulator, a cutting motor and a pipe cutting disc. The cutting motor is connected to the first manipulator. A first manipulator is installed on each workbench on the front and rear sides of the first upper support frame. The pipe cutting disc is fixed on the output shaft end of the cutting motor and the pipe cutting position is adjusted by the first manipulator.

4. The cold-cutting production line for plastic water pipes according to claim 1, characterized in that: The pipe chamfering mechanism includes a second manipulator, a grinding motor and a grinding head. The grinding motor is connected to the second manipulator. A second manipulator is provided on the workbench on the front and rear sides of the two upper molds connected to the second upper support frame. The grinding head is fixed on the output shaft end of the cutting motor and the grinding position is adjusted by the second manipulator.

5. The plastic water pipe cold cutting production line according to claim 1, characterized in that: The drilling mechanism includes a third manipulator, a drilling motor and a drilling bit. The drilling motor is connected to the third manipulator. The third manipulator is installed on the workbench on the right side of the lower mold translation conveyor line. The drilling bit is installed on the output shaft end of the drilling motor and the drilling position is adjusted by the third manipulator.

6. The cold-cutting production line for plastic water pipes according to claim 1, characterized in that: An auxiliary guide rod (13-14) is also horizontally fixed to the bottom of the support seat, and the second translation seat is slidably connected to the auxiliary guide rod through the guide seat (13-15). Both the support seat and the workbench are provided with a through groove for the guide seat to pass through, and the auxiliary guide rod and the slide rail are parallel to each other.

7. The cold-cutting production line for plastic water pipes according to claim 1, characterized in that: A limiting lever (15-2) is respectively provided on the support seat on the left side of the first translation seat and the support seat on the right side of the second translation seat.

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